An image forming apparatus includes a plurality of image forming units forming a visible image by attaching charged developer to an electrostatic latent image, a transfer belt member being transferred the visible image formed by each of the plurality of image forming units, a plurality of tension members tightly stretching the transfer belt member, a primary transfer member transferring the visible image formed by the plurality of image forming units to the transfer belt unit, a secondary transfer member transferring the visible image transferred to the transfer belt member on a recording medium, and a fixing unit fixing the visible image transferred to the recording medium. The plurality of image forming units are disposed in at least two transfer regions formed by segmenting the transfer belt member by the plurality of the tension members.